Matlab and GAMS
DLL
I met issues in the first step to connect Matlab and GAMS.
My Matlab is installed at 'c:\program files\Matlab'; my GAMS is
installed at 'c:\program files\GAMS23.6'.
When i followed the instruction to add the GAMS directory to the
Matlab path.
>> addpath 'c:\program files\GAMS23.6'; savepath;
I was informed that
Warning: unable to save path to file 'c:\program files\Matlab\R2010b
\local\pathdef.m'
I do not know what I should do?
Can anybody help me?
Thanks,
Ehsan
The solution to your problem can be found below:
http://www.mathworks.com/support/solutions/en/data/1-9574H9/index.html?solution=1-9574H9
Lili Du
GAMS Rev 236 Copyright (C) 1987-2011 GAMS Development. All rights reserved
Licensee: Gary Goldstein G010614:2121CA-WIN
Decision Ware, Inc. DC2807
--- Starting compilation
--- gdxmrw04.gms(10) 2 Mb
--- call =rm writeset.gdx
--- gdxmrw04.gms(11) 2 Mb
--- call =rm writepar.gdx
--- gdxmrw04.gms(14) 2 Mb
--- call =matlab -r w_batch -logfile w_batch.log -nosplash -nodisplay /wait
--- gdxmrw04.gms(14) 2 Mb 1 Error
*** above call failed: Unknown error
*** ERRORLEVEL set to 1
*** Error 330 in C:\Users\ldu\Documents\gamsdir\projdir\gdxmrw04.gms
CALL failed
--- gdxmrw04.gms(19) 2 Mb 2 Errors
*** Error 333 in C:\Users\ldu\Documents\gamsdir\projdir\gdxmrw04.gms
$Error encountered - see listing for detailsrm: writeset.gdx: No such file or directory
rm: writepar.gdx: No such file or directory
--- call =gdxdiff writeset writeset_
GDXDIFF Dec 13, 2010 23.6.3 WEX 22848.22869 WEI x86_64/MS Windows
File1 : writeset
File2 : writeset_
GDXDIFF error: Input file not found writeset.gdx
--- gdxmrw04.gms(21) 2 Mb 3 Errors
*** Error 333 in C:\Users\ldu\Documents\gamsdir\projdir\gdxmrw04.gms
$Error encountered - see listing for details
--- gdxmrw04.gms(23) 2 Mb 4 Errors
*** Error 333 in C:\Users\ldu\Documents\gamsdir\projdir\gdxmrw04.gms
$Error encountered - see listing for details
--- gdxmrw04.gms(24) 2 Mb
--- call =gdxdiff writepar writepar_
GDXDIFF Dec 13, 2010 23.6.3 WEX 22848.22869 WEI x86_64/MS Windows
File1 : writepar
File2 : writepar_
GDXDIFF error: Input file not found writepar.gdx
--- gdxmrw04.gms(25) 2 Mb 5 Errors
*** Error 333 in C:\Users\ldu\Documents\gamsdir\projdir\gdxmrw04.gms
$Error encountered - see listing for details
There were errors: not all tests passed
--- gdxmrw04.gms(28) 2 Mb 5 Errors
*** Status: Compilation error(s)
--- Job gdxmrw04.gms Stop 03/29/11 10:44:46 elapsed 0:00:00.180
Exit code = 2
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Ehsan
I was able to partially reproduce you error for the gdxmrw04.gms file
on Win7 x64 with GAMS 23.6 and Matlab 2010Rb. As discussed in the link
below, some people believe it's an issue related to GAMS 23.6 and if
you use an older version of GAMS like 23.3, you might have a
workaround.
The link between Matlab and Gams Options:
http://groups.google.com/group/gamsworld/browse_thread/thread/d9cbf96e77acb3d9/4ef19ed26b798807
Good Luck,
Ehsan
>
> - Show quoted text -
Steven Dirkse
If you are having problems getting started with GDXMRW, you should
look at the mini-FAQ at http://www.gams.com/~steve/gdxmrw.html. The
last topic there addresses this issue.
-Steve
--
Steven Dirkse, Ph.D.
GAMS Development Corp., Washington DC
Voice: (202)342-0180 Fax: (202)342-0181
sdi...@gams.com
http://www.gams.com
Ehsan
Installing the gmsmt_.zip update solved my problem. Thanks for the
pointer.
Bests,
Ehsan
On Apr 1, 7:25 am, Steven Dirkse <sdir...@gams.com> wrote:
> Lili,
>
> If you are having problems getting started with GDXMRW, you should
>
> -Steve
>
>
>
>
>
> On Tue, Mar 29, 2011 at 5:53 PM, Ehsan <ehsan.nikbak...@gmail.com> wrote:
> > Dear Lili
>
> > I was able to partially reproduce you error for the gdxmrw04.gms file
> > on Win7 x64 with GAMS 23.6 and Matlab 2010Rb. As discussed in the link
> > below, some people believe it's an issue related to GAMS 23.6 and if
> > you use an older version of GAMS like 23.3, you might have a
> > workaround.
>
> > The link between Matlab and Gams Options:
> --
> Steven Dirkse, Ph.D.
> GAMS Development Corp., Washington DC
> Voice: (202)342-0180 Fax: (202)342-0181
Lili Du
GAMS 23.6.4 (Windows-64bit) solves the issues. I mean I can
run the test gdxmrw05 successfully now. Thanks,
Lili
Lili Du
I'm was trying to transfer some data between Matlab and
GAMS. The original GAMS model is the very typical example
from Dr. Steven Dirkse's documentation.
$set matout "'matsol.gdx', x, dual ";
set i /1*2/,
j /1*3/;
alias (j1,j);
parameter
Q(j,j1) /
1 .1 1.0
2 .2 1.0
3 .3 1.0 /,
A(i,j) /
1 .1 1.0
1 .2 1.0
1 .3 1.0
2 .1 -1.0
2 .3 1.0 /,
b(i) /
1 1.0
2 1.0 /,
c(j) /
1 2.0 /;
$if exist matdata.gms $include matdata.gms
variables obj;
positive variable x(j);
equation cost, dual(i);
cost.. obj =e= 0.5*sum(j,x(j)*sum(j1,Q(j,j1)*x(j1))) +
sum(j,c(j)*x(j));
dual(i).. sum(j, A(i,j)*x(j)) =g= b(i);
model qp /cost,dual/;
solve qp using nlp minimizing obj;
execute_unload %matout%;
------------------------------------------------
I want to replace the parameters of A, Q, b and c from
Matlab.
First, I successfully replaced A and Q by using the
following codes:
>> s.name = 'A'; s.val = [1 1 2; -1 0 2]; s.type =
'parameter'; s.form = 'full';
>> x = gams('qp_test',s)
Then, I failed to replaced vector b and c by using both of
below codes:
1. set b as column vector
>> s.name = 'b'; s.val = [2.0; 2.0]; s.type = 'parameter';
s.form = 'full';
>> x = gams('qp_test',s)
2. set b as row vector
>> s.name = 'b'; s.val = [2.0 2.0]; s.type = 'parameter';
s.form = 'full';
>> x = gams('qp_test',s)
------------------------------------
The errors of (1) and (2) are the same:
??? Error using ==> gams
abnormal GAMS termination running C:\Program
Files\GAMS23.6\gams.exe qp_test lo=0: check listing file
I checked the .lst file, but the hint information in .lst is
not helping at all.
Please help.
--
Best regards,
Lili
Steven Dirkse
Also, I don't recommend that you use the gams() function to pass data. It makes it difficult to find and fix problems. Suggestions for a better approach are found here:
-Steve
LL,could you solve the problem because I have the same and I don't know the reason.
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strug...@hotmail.com
在 2013年1月29日星期二UTC+8上午1时34分11秒，Sofia写道：
LL,
could you solve the problem because I have the same and I don't know the reason.
El martes, 5 de abril de 2011 15:59:55 UTC-6, LL escribió: